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Data da imagem : 04/12/2018
Cod. da imagem: C038/6466
Crédito: Dr. Ken Wagner, Visuals Unlimited/ Science Photo Library/ Fotoarena

Direito Controlado




Data da imagem : 04/12/2018

Cod. da imagem: C038/6466

Crédito: Dr. Ken Wagner, Visuals Unlimited/ Science Photo Library/ Fotoarena

Light micrograph of a cross-section through a beach grass (Ammophila breviligulata) leaf, a monocotyledon, showing recessed stomata (light pink in top cell layer).

Editorial RM
Data da imagem : 04/12/2018
Cod. da imagem: C038/6468
Crédito: John Sibbick / Science Photo Library/ Science Photo Library/ Fotoarena

Direito Controlado




Data da imagem : 04/12/2018

Cod. da imagem: C038/6468

Crédito: John Sibbick / Science Photo Library/ Science Photo Library/ Fotoarena

Temnodontosaurus ichthyosaur and prey, illustration. This large ichthyosaur (12 metres long) is feeding on a smaller ichthyosaur (Ichthyosaurus communis). Ichthyosaurs were marine reptiles that lived from 248 to 90 million years ago, during the Triassic, Jurassic and Cretaceous. They were carnivorous predators, and being streamlined and swift were extremely well adapted to their marine habitat. They inhabited an ecological niche that was similar to that of the present day porpoises (marine mammals). Temnodontosaurus ichthyosaurs existed around 200 to 175 million years ago in the Early Jurassic. For a black-and-white version of this artwork, see C038/6469.

Editorial RM
Data da imagem : 03/12/2018
Cod. da imagem: F021/2160
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2160

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2161
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2161

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2168
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2168

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2175
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2175

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2189
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2189

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Peptococcus bacteria, computer illustration. Gram-positive bacteria. As in the case of other species of Streptococcus, these bacteria are characterized by their tendency to form chains. Anaerobic streptococci are normal commensals on the mucous membranes such as the vagina and large intestines. They become pathogenic in association with other anaerobic bacteria, causing gangrene around surgical wounds, puerperal sepsis (infection of the lining of the womb or vagina following childbirth) and septicaemia (blood poisoning).

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2192
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2192

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Peptococcus bacteria, computer illustration. Gram-positive bacteria. As in the case of other species of Streptococcus, these bacteria are characterized by their tendency to form chains. Anaerobic streptococci are normal commensals on the mucous membranes such as the vagina and large intestines. They become pathogenic in association with other anaerobic bacteria, causing gangrene around surgical wounds, puerperal sepsis (infection of the lining of the womb or vagina following childbirth) and septicaemia (blood poisoning).

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2196
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2196

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Peptostreptococcus bacteria, computer illustration. Gram-positive bacteria. As in the case of other species of Streptococcus, these bacteria are characterized by their tendency to form chains. Anaerobic streptococci are normal commensals on the mucous membranes such as the vagina and large intestines. They become pathogenic in association with other anaerobic bacteria, causing gangrene around surgical wounds, puerperal sepsis (infection of the lining of the womb or vagina following childbirth) and septicaemia (blood poisoning).

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2198
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2198

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Peptostreptococcus bacteria, computer illustration. Gram-positive bacteria. As in the case of other species of Streptococcus, these bacteria are characterized by their tendency to form chains. Anaerobic streptococci are normal commensals on the mucous membranes such as the vagina and large intestines. They become pathogenic in association with other anaerobic bacteria, causing gangrene around surgical wounds, puerperal sepsis (infection of the lining of the womb or vagina following childbirth) and septicaemia (blood poisoning).

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2205
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2205

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Molecular model of the snake venom toxin convulxin, found in the tropical rattlesnake (Crotalus durissus terrificus). This toxin causes blood clot formation.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2211
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2211

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2217
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2217

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2222
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2222

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Transfusion transmitted virus (TTV) particles, computer illustration. This is a non-enveloped DNA (deoxyribonucleic acid) virus first identified in Japan in 1997. It has since been found to be near ubiquitous, causing chronic human infections, but is not associated with any disease.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2225
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2225

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Veillonella bacteria, computer illustration. Veillonella are Gram-negative anaerobic cocci, part of intestine and oral microflora and the causative agents of different inflammations.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2230
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2230

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Veillonella bacteria, computer illustration. Veillonella are Gram-negative anaerobic cocci, part of intestine and oral microflora and the causative agents of different inflammations.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2231
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2231

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Veillonella bacteria, computer illustration. Veillonella are Gram-negative anaerobic cocci, part of intestine and oral microflora and the causative agents of different inflammations.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2237
Crédito: Science Photo Library/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2237

Crédito: Science Photo Library/ Science Photo Library/ Fotoarena

Overweight man wearing blue shirt with bulging buttons.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2242
Crédito: Science Photo Library/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2242

Crédito: Science Photo Library/ Science Photo Library/ Fotoarena

Overweight man with hands on his stomach, side view.

Criativa RF
Data da imagem : 03/12/2018
Cod. da imagem: F021/2252
Crédito: Science Photo Library/ Science Photo Library/ Fotoarena

Royalty Free




Data da imagem : 03/12/2018

Cod. da imagem: F021/2252

Crédito: Science Photo Library/ Science Photo Library/ Fotoarena

Overweight woman measuring her waist with a tape measure.

Criativa RF
 
 
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